Everyday Innovations Booksling Pen Holder And Bookmark, Mango (BS-Mango) Holds up to 2 pens or highlighters- never forget your pen! Use the ribbon or elastic to mark your page- never lose your bookmark! High quality woven elastic stretches 6.25-Inch-12-Inch- fits most mid-to-large books Universal design- works on hard and soft cover books! Perfect for journals (e.g. Moleskine), sketchbook, textbooks, notebooks, puzzle books (like sudoku), bibles, even clipboards!